def cmdSetColAddr(colStart, colEnd):
""" Setup column start and end address for horizontal/vertical mode """
if (colStart < 0) or (colStart > 127):
raise ValueError("Column Start only valid from 0 to 127")
if (colEnd < 0) or (colEnd > 127):
raise ValueError("Column End only valid from 0 to 127")
if (colStart > colEnd):
raise ValueError("Column End must be greater then Column Start")
sendCmd(0x21, colStart, colEnd)
def cmdSetPageAddr(pageStart, pageEnd):
""" Setup page start and end address for horizontal/vertical mode """
if (pageStart < 0) or (pageStart > 7):
raise ValueError("Page Start only valid from 0 to 7")
if (pageEnd < 0) or (pageEnd > 7):
raise ValueError("Page End only valid from 0 to 7")
if (pageStart > pageEnd):
raise ValueError("Page End must be greater then Page Start")
sendCmd(0x22, pageStart, pageEnd)
def cmdSetContrast(contrast):
""" Set display contrast 0-255 """
if contrast > 255: raise ValueError('Paramteres from 0 to 255 excepted!')
sendCmd(0x81, contrast)
def cmdSetMuxRatio(muxRatio):
""" Set MUX ratio to N+1 MUX, values from 16 to 63 allowed """
if (muxRatio < 15) or (muxRatio > 63):
raise ValueError("Mux Ratio from 16 to 63 supported!")
sendCmd(0xA8, muxRatio)
def cmdRemapCol(bRemap):
""" Remap segments to either start from 0 or from 127 """
if bRemap: sendCmd(0xA1)
else: sendCmd(0xA0)
def cmdSetStartRow(startRow):
""" Set Display RAM start row from 0-63 """
if (startRow < 0) or (startRow > 63):
raise ValueError("Start Row from 0 to 63 supported!")
sendCmd(0x40 | startRow)
def cmdChargePumpDisable():
""" Disable charge pump for the display """
sendCmd(0x8D, 0x10)
def cmdChargePumpEnable():
""" Enable charge pump for the display """
sendCmd(0x8D, 0x14)
def cmdSetCurPage(page):
""" Set Page Start Address, Current Line if in Page Mode """
if (page < 0) or (page > 7):
raise ValueError("Pages from 0 to 7 supported!")
sendCmd(0xB0 | page)
def cmdSetAddrMode(addrMode):
""" Set display address mode """
if addrMode == ADDR_MODE_HOR or ADDR_MODE_VER or ADDR_MODE_PAGE:
sendCmd(0x20, addrMode)
else:
raise ValueError("Undefined address mode!")
def cmdDisplayInverse(bInverse):
""" Inverse display """
if bInverse: sendCmd(0xA7)
else: sendCmd(0xA6)
def cmdDisplayAllOn(bOn):
""" Turn all pixels On """
if bOn: sendCmd(0xA5)
else: sendCmd(0xA4)
def cmdDisplayOFF():
""" Turn display off """
sendCmd(0xAE)
def cmdDisplayON():
""" Turn display on """
sendCmd(0xAF)
def cmdRemapRow(bRemap):
""" Remap COM Output scan direction """
if bRemap: sendCmd(0xC8)
else: sendCmd(0xC0)
def cmdSetRowOffset(offset):
""" Set vertical shift by COM from 0 to 63 """
if (offset < 0) or (offset > 63):
raise ValueError("Offset from 0 to 63 supported!")
sendCmd(0xD3, offset)
def cmdSetCurCol(col):
""" Set Column Start Address, Current column in Page Mode """
if (col < 0) or (col > 127):
raise ValueError("Columns from 0 to 127 supported!")
sendCmd(col & 0x0F) # lower nibble with cmd 0x00
sendCmd(((col >> 4) & 0x0F) | 0x10) # higher nibble with cmd 0x01